Chemical equations must be balanced, meaning that the same number of atoms entering into a chemical reaction must come out of the chemical reaction. It is the coefficient placed in front of the reactants and products that balance the chemical components of an equation, and you will learn how to balance chemical equations using coefficients in another lesson.
Cocaine use by pregnant women has a variety of effects on the embryo and fetus, ranging from various gastro-intestinal and cardiac defects to tissue death from insufficient blood supply. Thus, cocaine has been termed a teratogen, or an agent that causes defects in fetuses during prenatal development. Cocaine is one of the most commonly used drugs in the US and it has a history of both medical and illegal recreational use. It is a drug capable of a wide array of effects on physical and mental health. Research on the teratogenic effects of cocaine began in the early 1980s, and in 1985 research on the effects of cocaine on prenatal development gained widespread attention.
The guidelines for Accutane usage are as follows: Isotretinoin is teratogenic, causes birth defects, and is Category X, meaning that there is no indication for its usage during pregnancy. In addition, it should not be taken while nursing.